OC Transpo reported shortly before 9am that LRT service was back to normal after an O-Train Line 1 train stopped at Bayview Station just before 8am on Wednesday.
A technician has been sent to diagnose the problem.
Meanwhile, service at Bayview, Pimisi and Lyon stations was only on the platforms eastbound, OC Transpo tweeted. The riders had to change trains at Lyon station.
Service along the rest of the line was unaffected.